Home / 20,213.26-30,323.13-8,528.20

Finding the Fourth Proportional to 20,213.26, 30,323.13 and 8,528.20

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Solution

The fourth proportional to 20,213.26, 30,323.13 and 8,528.20 is: 12,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.26 : 30,323.13 = 8,528.20 : x
  2. Step 2: Convert to fraction form
    20,213.26/30,323.13 = 8,528.20/x
  3. Step 3: Cross multiply
    20,213.26x = 30,323.13 × 8,528.20
  4. Step 4: Simplify right side
    20,213.26x = 258,601,717.27
  5. Step 5: Solve for x
    x = 258,601,717.27/20,213.26
  6. Step 6: Final answer
    x = 12,793.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.